Platform-harrow



'0. MORRIS & M. S. HEAOOOK. Platform Harrow.

No. 231,080. Patented Aug.10,1880.

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CHRISTOPHER MORRIS, OF HENRY COUNTY, AND MILES S. HEAOOOK, OF WVAYN EOOUN TY, INDIANA.

PLATFORM-HARROW.

SPECIFICATION formingpart of Letters Patent No. 231,080, dated August10, .1880.

Application filed February 2, 1880.

To all whom it may concern Be it known that we, CHRISTOPHER MOR- Rls, ofHenry county, Indiana, and MILES S. HEACOGK, of Wayne county, Indiana,have invented certain new and useful Improvements in Platform-Harrows;and we do hereby declare the following to be a full and correctdescription of the same, reference being had to the accompanyingdrawings.

Our invention consists of a novel construction of flexible harrow anddouble platform or clod-crusher, arranged to be operated together orseparated, when desired, all of which will be fully understood by thefollowing description and claims.

In the accompanying drawings, Figure 1 is a top view of the right-handsection of our machine. Fig. 2 is a longitudinal section of the same,showing the motion of the teeth in dotted lines; and Fig. 3 shows theadjustable spreader-bar and its connections.

In the construction of our machine we make two platforms or drags, A,and connect the same together by hinges M and rod or wire N, Fig. 1. Bythis means thelmachine is flexible, and the two sections of the platformor drag adapt themselves to the uneven ground, 1Lwhether a ridge or ahollow, as the case may Upon the platform A, or on each section thereof,is a series of teeth-bars, B, pivoted at their ends to the side bars, G,which connect the wholelseries togethergg'lhe teeth T are fastened tothese bars B by means of eyebolts U, which are provided with screw-nutsV, which devices afford a very simple, cheap, and efficientgmeans ofholding the teeth in place, as the eyebolts may be easily tightened indry weather, if the teeth become loose; and the teeth may also bequickly removed for sharpening, or if they be bent or broken. Also, theteeth can be turned one-quarter round v three times, and have a sharpcutting-edge,

without smithing.

The teeth-bars B have knees .0 attached thereto, except the rear bar,which is provided with an upright lever, D, for the purpose (inconnection with the reach E)of vibratinggthe teeth at pleasure.Aratchet-bar, L, locks this lever D, which drops into loop Q and catcheson a bolt, R, therein, and a strong binder, F, rests upon theteeth-bars, and is locked in place by means of a staple, S, andcrank-hook WV. By this means the teeth-bars are pressed hard upon theplatform, and held as if permanently fixed thereto; and yet they can bereleased in a moment, when necessary.

The two sections of the harrow may be removed from the sectionalplatform, and in that case they are attached together by means of twofriction bolts, H, provided with nuts and washers. The two sections ofthe platform have central draft-bars, l, which are bolted to the ends ofthe spreader-bar J, as seen in Figs. 1 and 3, and the inner edges of theharrow have twisted draft-bars P, also attached to the spreader-bar nearits center. By this arrangement the two sections retain someflexibility, and yet are held to their work and prevented from crampingtogether.

The hitch-bail K, Fig. 3, is hooked into the eyebolt V, and its oppositeend books into a corresponding eyebolt on the opposite half of themachine, while the team or draft is attached to the middle of the bailor point 70.

\\hen the harrow is removed from the platform the twisted link 0 servesfor attaching the draft to the forward knee of the harrow.

The harrow and clod-crusher may be separated, and thus employed, whichis sometimes very desirable, and a valuable improvement.

Having thus described our invention, what we claim, and desire to secureby Letters Patent of the United States, is

1. In a combined harrow and clod-crnsher in which the harrow-teeth arearranged to swing backward and forward, the double or folding harrow, incombination with the double or folding clod-crusher, arranged to beoperated substantially as set forth.

2. In a folding or' double harrow and platform, the rocking teeth-barsB, provided with the series of knees 0, connected with the reach E, andthus movable together bymeans of the lever D, the same being locked inplace by 5 means of the ratchet-1ever L, in combination with the binderF, resting on the teeth-bars B, and the crank-hook W, all arranged tooperate substantially as set forth.

3. In a sectional platform-harrow, the spread- IOO er-bar J, the endsthereof being loosely bolted The above specification of said inventionto the rigid draft-bars I of the two sections of signed and witnessed atDublin, Indiana, this the platform, and the inner edges of the two 26thday of January, A. D. 1880. l sections of the harrow being provided with5 pivoted draft-bars P, also connected with the CHRISTOPHER MORRIS.

spreader-barJ,wherebythetwosectionsofboth MILES S. HEACOCK. the platformand the barrow are made to retain some flexibility, and yet are held totheir Vitnesses: Work and prevented from cramping together, JOHN W.SCOTT,

10 substantially as and for the purposes set forth. IDA J. SCOTT.

